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4904 > Fire Protection > Flashcards

Fire Protection Flashcards

1
Q

What are the Fire Pump Auto Starts?

A

Motor Driven Fire Pump - 140# for ≥ 2 Sec
East Diesel FW pump - 130# for ≥ 15 secs
West Diesel FW Pump - 120# for ≥ 25 secs

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2
Q

What is the Diesel Fire Pump Trip?

A

Engine overspeed @ 2112 RPM

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3
Q

For any given fire, what are the most fire pumps you should expect to see running?

A

2 Pumps max for a Main Transformer Fire

- Electric FW Pump and East Diesel FW Pump

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4
Q

Can you parallel the two supply power sources to the fire pump house?

A

No, you cannot parallel them due to the two sources being out of phase

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5
Q

Which unit can manually open ZMO-10 and ZMO-20?

A

Either unit has the ability to open ZMO-10 and ZMO-20

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6
Q

Which unit is required to manually close ZMO-10 and ZMO-20?

A

Both units are required to close ZMO-10/20 after them being open

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7
Q

Which fans will trip on high temp (400°F) on thermistor string?

A

AFX
CPR
CIPX
TSC Filtration Unit

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8
Q

At what temp does the pre-alarm for the fans with the charcoal bed come in?

A

150°F-220°F

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9
Q

Which fans have charcoal filter fire water protection?

A 
AFX - Spent Fuel Exhaust
CPR - Containment Pressure Relief
CIPX - Instrument Room Purge Exhaust
TSC Filtration 
AES - Engineered Safety Features
ACRF/CRP - Control Room Pressurization
SATFU - SAT Room
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10
Q

ZMO-10/20 will auto open upon receipt of any of the following fire signals from these areas

A
  • Drumming area
  • New fuel receiving area
  • Any charcoal filter supplied by fire water system
  • Push button for Auxiliary building hose reels
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11
Q

Will general aux building elevation area fire detectors open ZMO-10/20?

A

No they will not open ZMO-10/20. They just send an alarm.

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12
Q

What area do each of the CO2 Tanks Protect?

A 
71/2 Ton - Old Office Building and Generator Degas
17 Ton Areas:
- 4KV Room
- EDG Rooms
- EDG Fuel Oil Pump Room
- Aux Cable Vault
- CRCV
- Switchgear room cable vault
- Quads 1-4
- MT Lube Oil Tank Rooms
- Lube Oil Tank Rooms
- CRD room
- Hose Reels
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13
Q

How does the CO2 Master Valve fail on loss of 250V DC?

A

Fails open (Pilot denergizes)

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14
Q

How does the CO2 Pilot Valve fail on loss of 250V DC?

A

Fails open

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15
Q

How does the CO2 Master Valve fail on loss of pilot pressure?

A

Fails closed

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16
Q

With a fire in the U2 CRCV, what automatically actuates for fire protection?

A

Halon and Fire Water Sprinkler

17
Q

With a fire in the U1 CRCV, what automatically actuates for fire protection?

A

Halon only

18
Q

What must you manually actuate for a CRCV fire to both units?

A

CO2

19
Q

Is Turbine lagging fire protection automatic?

A

No, fire has to be locally verified and manually actuated from control room (ZRV-40/41)

20
Q

If Halon is actuated at the cylinder manually, will the extended Halon bottles actuate?

A

No, they will not

21
Q

What is the purpose of the INDIVIDUAL ISOLATION SWITCH?

A

Prevents all auto actuations of CO2 to a protected area

22
Q

What happens on a temp Pre-alarm in the charcoal bed?

A

CR gets an alarm and procedure directs opening of FP Isolation vlv

23
Q

How does the CO2 Selector Valve fail on loss of power?

A

Fails closed

24
Q

What is the capacity and of the pegging pump and at what pressure does it keep the header

A

50 GPM

150 psi

25
Q

How long do the charcoal filter deluge valves actuate for

A

They ever cycle 20-30 seconds

26
Q

What do the CO2 Master Valves do

A

Sends CO2 to various area selector valves

27
Q

What do the CO2 Pilot Valves do

A

Provide pilot pressure to the master valves on CO2 system activation

28
Q

Are CO2 Pilot Valves normally energized or de-energized

A

Energized

29
Q

What do CO2 Selector Valves do

A

Admit CO2 to its area on a fire signal

30
Q

Are CO2 Selector Valves normally energized or de-energized

A

Normally de-energized

31
Q

What are actuation methods for Halon

A

Automatic
Manual-Electric (Control Room pushbutton)
Manual - At Automan (Pull Pin-Push button)
Manual - At Halon Cylinders (Pneumatic Actuator)

32
Q

How many extended Halon discharge cylinders are there

A

Three

33
Q

How long after the main Halon discharge do the extended Halon discharge cylinders actuate

A

3 minutes 45 seconds

34
Q

How long does the main Halon discharge last

A

45 seconds

35
Q

How long does extended Halon discharge last

A

4 minutes

4904 (4 decks)

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